METHOD TO MANUFACTURE PELLET OF NUCLEAR CERAMIC FUEL Russian patent published in 2014 - IPC G21C3/02 

FIELD: power engineering.

SUBSTANCE: pellet of nuclear fuel from uranium dioxide with homogeneously distributed oxides of aluminium and silicon and required content of aluminium from 0.005 to 0.03 wt % and silicon from 0.003 to 0.02 wt % is manufactured by introduction of a master powder of uranium protoxide-oxide U₃O₈ at the stage of preparation of the pressed powder in the amount of up to 30 wt %. At the same time the master powder is prepared in accordance with the ADU-process from a solution of uranyl nitrate containing aluminium and silicon in quantities from 0.05-0.3 wt %.

EFFECT: increased depth of fuel burning.

1 dwg